2.6.1.2 Review of existing models

Summary

This section presents a review of previous surface water models used in the Namoi river basin. Five modelling studies within the Namoi river basin were identified. Except for the Schlumberger Namoi Catchment Water Study, none of these studies includes the impacts of coal resource development in its modelling. Predicted differences in average streamflow between two modelling scenarios that are similar to the baseline and coal resource development pathway (CRDP) futures in the bioregional assessment (BA) are no more than 0.2% at key locations along the Mooki and Namoi rivers. All of the previously used surface water models are unsuitable for use in the BA for various reasons.